As you can probably imagine, I agree with most of what you have written here.

The income producing vs non activities are killers. Yes do what works but if you aren't consistently exploring new ideas, what works becomes stale and stops working over time.

 I deal with some companies that 'save money' by cutting R&D. Generally a losing strategy past the short term.

If you are okay with it, I will upvote and resteem this. I would appreciate if you go to my blog and find a "lunch taco" post to upvote. There are likely several still open for the week. I was using the tag #chewmytaco but it didn't attract the foodies like I had imagined ;)